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Updated: Apr 22, 2026

Effect of Bending on the Electrical Characteristics of Flexible Organic Single Crystal-based Field-effect Transistors
Published on: November 7, 2016
Influence of side-chain regiochemistry on the transistor performance of high-mobility, all-donor polymers
Zhuping Fei1, Pichaya Pattanasattayavong, Yang Han
1Department of Chemistry and Centre for Plastic Electronics, Imperial College London , Exhibition Road, London SW7 2AZ, U.K.
Abstract:
Three novel polythiophene isomers are reported whereby the only difference in structure relates to the regiochemistry of the solubilizing side chains on the backbone. This is demonstrated to have a significant impact on the optoelectronic properties of the polymers and their propensity to aggregate in solution. These differences are rationalized on the basis of differences in backbone torsion. The polymer with the largest effective conjugation length is demonstrated to exhibit the highest field-effect mobility, with peak values up to 4.6 cm(2) V(-1) s(-1).
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